Lighting control system

Abstract

The invention discloses a lighting control system comprising a single-chip microcomputer, a power supply module, a wireless communication module, a signal modulation module, a memory, an adjustable ballast, a human body detector, a photosensitive sensor, an acoustic sensor, an electric light source and a buzzer. The power supply module is connected to the single-chip microcomputer, the single-chipmicrocomputer is connected to the signal modulation module through the wireless communication module, the memory is connected to the signal modulation module, and the adjustable ballast, the human body detector, the photosensitive sensor and the acoustic sensor are connected to the signal modulation module. The power supply module includes a voltage input end, a voltage reference circuit, a firstcapacitor, a first resistor, a first transistor, a first diode, a second transistor, a second resistor, a third resistor, and a voltage output end, and the voltage input end is connected to an emitter of the first triode, a cathode of the voltage reference circuit, one end of the first capacitor and one end of the first resistor. The lighting control system has the advantages of simple circuit structure, low cost, convenient maintenance, and the high safety and reliability of the circuit.

Description

technical field [0001] The invention relates to the field of lighting control, in particular to a lighting control system. Background technique [0002] Lighting control is a method of changing the working voltage or current of a lamp. Control and adjustment are mainly reflected in two aspects: one is the control of brightness, that is, the light intensity, and the other is the control of color. [0003] There are two main methods of controlling brightness: one is mechanical addition and subtraction, that is, by controlling the number of lighting lamps to increase or decrease the total luminous intensity. For a single lamp, you can use a shading plate or an iris diaphragm to change the amount of light transmitted by the lamp; another method is the electrical control method, that is, using various dimmers to change the operating voltage or current of the lamp to adjust the brightness of the lamp. The luminous intensity of the lamps, these two methods have their own characte...

AI Technical Summary

Problems solved by technology

For a single lamp, you can use a shading plate or an iris diaphragm to change the amount of light transmitted by the lamp; another method is the electrical control method, that is, using various dimmers to change the operating voltage or current of the lamp to adjust the brightness of the lamp. The luminous intensity of the lamps, these two methods have their own characteristics, the advantage of the first method is that it will not affect the color temperature, but the adjustment is not convenient enough

The second method is simple to operate, and can realize automatic and program-controlled operation. Its disadvantage is that the color temperature and color rendering will change greatly when the luminous intensity is changed.

[0004] The power supply part of the traditional lighting control system uses many components, the circuit structure is complicated, the hardware cost is high, and it is inconvenient to maintain

In addition, because the power supply part of the traditional lighting control system lacks corresponding circuit protection functions, such as the lack of current limiting protection functions, the safety and reliability of the circuit are poor

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